public void RandomizeWeights()
{
foreach (Connection c in connections)
{
c.weight = (float)EvoGame.RandomFloat() * 2 - 1;
}
}
public Creature(Vector2 pos, float viewAngle)
{
id = currentId++;
this.pos = pos;
this.viewAngle = viewAngle;
inBias.SetName(NAME_IN_BIAS);
inFoodValuePosition.SetName(NAME_IN_FOODVALUEPOSITION);
inFoodValueFeeler.SetName(NAME_IN_FOODVALUEFEELER);
inOcclusionFeeler.SetName(NAME_IN_OCCLUSIONFEELER);
inEnergy.SetName(NAME_IN_ENERGY);
inAge.SetName(NAME_IN_AGE);
inGeneticDifference.SetName(NAME_IN_GENETICDIFFERENCE);
inWasAttacked.SetName(NAME_IN_WASATTACKED);
inWaterOnFeeler.SetName(NAME_IN_WATERONFEELER);
inWaterOnCreature.SetName(NAME_IN_WATERONCREATURE);
inMemory1.SetName(NAME_IN_MEMORY1);
outBirth.SetName(NAME_OUT_BIRTH);
outRotate.SetName(NAME_OUT_ROTATE);
outForward.SetName(NAME_OUT_FORWARD);
outFeelerAngle.SetName(NAME_OUT_FEELERANGLE);
outAttack.SetName(NAME_OUT_ATTACK);
outEat.SetName(NAME_OUT_EAT);
outMemory1.SetName(NAME_OUT_MEMORY1);
brain = new NeuronalNetwork();
brain.AddInputNeuron(inBias);
brain.AddInputNeuron(inFoodValuePosition);
brain.AddInputNeuron(inFoodValueFeeler);
brain.AddInputNeuron(inOcclusionFeeler);
brain.AddInputNeuron(inEnergy);
brain.AddInputNeuron(inAge);
brain.AddInputNeuron(inGeneticDifference);
brain.AddInputNeuron(inWasAttacked);
brain.AddInputNeuron(inWaterOnFeeler);
brain.AddInputNeuron(inWaterOnCreature);
brain.AddInputNeuron(inMemory1);
brain.GenerateHiddenNeurons(10);
brain.AddOutputNeuron(outBirth);
brain.AddOutputNeuron(outRotate);
brain.AddOutputNeuron(outForward);
brain.AddOutputNeuron(outFeelerAngle);
brain.AddOutputNeuron(outAttack);
brain.AddOutputNeuron(outEat);
brain.AddOutputNeuron(outMemory1);
brain.GenerateFullMesh();
brain.RandomizeAllWeights();
CalculateFeelerPos(MAXIMUMFEELERDISTANCE);
color = new Color(EvoGame.RandomFloat(), EvoGame.RandomFloat(), EvoGame.RandomFloat());
GenerateColorInv();
CalculateCollisionGridPos();
}
public void calculate()
{
int currentFrequencyX = startFrequencyX;
int currentFrequencyY = startFrequencyY;
float currentAlpha = 1;
for (int oc = 0; oc < octaves; oc++)
{
if (oc > 0)
{
currentFrequencyX *= 2;
currentFrequencyY *= 2;
currentAlpha /= 2;
}
float[,] discretePoints = new float[currentFrequencyX + 1, currentFrequencyY + 1];
for (int i = 0; i < currentFrequencyX + 1; i++)
{
for (int k = 0; k < currentFrequencyY + 1; k++)
{
discretePoints[i, k] = (float)EvoGame.RandomFloat() * currentAlpha;
}
}
for (int i = 0; i < WIDTH; i++)
{
for (int k = 0; k < HEIGHT; k++)
{
float currentX = i / (float)WIDTH * currentFrequencyX;
float currentY = k / (float)HEIGHT * currentFrequencyY;
int indexX = (int)currentX;
int indexY = (int)currentY;
float w0 = interpolate(discretePoints[indexX, indexY], discretePoints[indexX + 1, indexY], currentX - indexX);
float w1 = interpolate(discretePoints[indexX, indexY + 1], discretePoints[indexX + 1, indexY + 1], currentX - indexX);
float w = interpolate(w0, w1, currentY - indexY);
heightMap[i, k] += w;
}
}
}
normalize();
}
public Creature(Creature mother)
{
id = currentId++;
//this.mother = mother;
generation = mother.generation + 1;
if (generation > _maximumGeneration)
{
_maximumGeneration = generation;
}
this.pos = mother.pos;
this.viewAngle = EvoGame.RandomFloat() * Mathf.PI * 2;
this.brain = mother.brain.CloneFullMesh();
SetupVariablesFromBrain();
CalculateFeelerPos(MAXIMUMFEELERDISTANCE);
for (int i = 0; i < 10; i++)
{
brain.RandomMutation(0.1f);
}
int r = mother.color.R;
int g = mother.color.G;
int b = mother.color.B;
r += EvoGame.RandomInt(-5, 6);
g += EvoGame.RandomInt(-5, 6);
b += EvoGame.RandomInt(-5, 6);
r = Mathf.ClampColorValue(r);
g = Mathf.ClampColorValue(g);
b = Mathf.ClampColorValue(b);
color = new Color(r, g, b);
GenerateColorInv();
if (CreatureManager.SelectedCreature == null || CreatureManager.SelectedCreature.Energy < 100)
{
CreatureManager.SelectedCreature = this;
}
}
protected override void Update(GameTime deltaTime)
{
while (Creatures.Count < 50)
{
Creature justSpawned = new Creature(
new Vector2(
EvoGame.RandomFloat() * game.tileMap.GetWorldWidth(),
EvoGame.RandomFloat() * game.tileMap.GetWorldHeight()),
EvoGame.RandomFloat() * Mathf.PI * 2);
justSpawned.Manager = this;
Creatures.Add(justSpawned);
}
for (int i = 0; i < AmountOfCores; i++)
{
int upperBound = Creatures.Count * (i + 1) / AmountOfCores;
if (upperBound > Creatures.Count)
{
upperBound = Creatures.Count;
}
int lowerBound = Creatures.Count * i / AmountOfCores;
MultithreadingHelper.StartWork((object state) => {
for (int k = lowerBound; k < upperBound; k++)
{
Creatures[k].ReadSensors();
}
MultithreadingHelper.PulseAndFinish();
});
}
MultithreadingHelper.WaitForEmptyThreadPool();
for (int i = 0; i < AmountOfCores; i++)
{
int upperBound = Creatures.Count * (i + 1) / AmountOfCores;
if (upperBound > Creatures.Count)
{
upperBound = Creatures.Count;
}
int lowerBound = Creatures.Count * i / AmountOfCores;
MultithreadingHelper.StartWork((object state) => {
for (int k = lowerBound; k < upperBound; k++)
{
Creatures[k].Act(deltaTime);
}
MultithreadingHelper.PulseAndFinish();
});
}
MultithreadingHelper.WaitForEmptyThreadPool();
numberOfDeaths += CreaturesToKill.Count;
RemoveCreaturesFromDeathList();
MergeCreaturesAndSpawnCreatures();
year += (float)deltaTime.ElapsedGameTime.TotalSeconds;
HandleCollision();
if (Creatures.Count > 0)
{
OldestCreatureAlive = Creatures[0];
foreach (Creature c in Creatures)
{
if (c.Age > OldestCreatureAlive.Age)
{
OldestCreatureAlive = c;
}
}
}
AliveCreaturesRecord.Add(Creatures.Count);
}
public void RandomMutation(float MutationRate)
{
Connection c = connections[EvoGame.RandomInt(connections.Count)];
c.weight += (float)EvoGame.RandomFloat() * 2 * MutationRate - MutationRate;
}